Seaquel
SQLite error code

SQLITE_IOERR_SHMLOCK

SQLITE_IOERR_SHMLOCK is SQLite result code 5130, an extended code of SQLITE_IOERR.

Result code5130
NameSQLITE_IOERR_SHMLOCK
Primary codeSQLITE_IOERR

What it means

The SQLITE_IOERR_SHMLOCK error code is no longer used.

Source: SQLite Result and Error Codes